Abstract: In an embodiment, a magnetic assembly includes: an inner permeance annulus; and an outer permeance annulus connected to the inner permeance annulus via magnets, wherein the outer permeance annulus comprises a peak region with a thickness greater than other regions of the outer permeance annulus.

Abstract: An electric socket includes a base provided with two electrodes and conduction members beside the electrodes. Each of the conduction members is connected to a power source and keeps a predetermined distance away from the electrodes. An upper casing has two apertures corresponding to the electrodes respectively. A power control unit includes a control block beside the conduction members and a control shaft having an end connected to the control block and an opposite end extended out of the upper casing. Two shutter members are pivoted on the base to shut the aperture. When a plug is inserted into the electric socket of the present invention, prongs of the slug will move away the shutter first, and then press the control shaft to make the control block bending the conduction members toward the electrodes that makes the conduction members contacting the electrodes respectively.

Abstract: An electric socket includes a base provided with two electrodes and conduction members beside the electrodes. Each of the conduction members is connected to a power source and keeps a predetermined distance away from the electrodes. An upper casing has two apertures corresponding to the electrodes respectively. A power control unit includes a control block beside the conduction members and a control shaft having an end connected to the control block and an opposite end extended out of the upper casing. Two shutter members are pivoted on the base to shut the aperture. When a plug is inserted into the electric socket of the present invention, prongs of the slug will move away the shutter first, and then press the control shaft to make the control block bending the conduction members toward the electrodes that makes the conduction members contacting the electrodes respectively.

Abstract: The tray-type connecting module for electronic memory cards of the present invention is comprised of a base placed on an electric circuit board and a tray openable and closable by sliding on the base for opening and closing. Wherein the bottom of the base is provided with a plurality of through holes in opposition to a plurality of connecting points on the electric circuit board. The bottom of the tray is provided in corresponding to the through holes with a plurality of pins; when the tray is moved to slide for opening in order to receive an electronic memory card, the pins contact with the input/output pins on the electronic memory card; and when the tray is moved to slide for closing, the pins of the tray are in alignment with the through holes, and are electrically connected with the connecting points on the electric circuit board via the through holes.

Abstract: The tray-type connecting module for electronic memory cards of the present invention is comprised of a base placed on an electric circuit board and a tray openable and closable by sliding on the base for opening and closing. Wherein the bottom of the base is provided with a plurality of through holes in opposition to a plurality of connecting points on the electric circuit board. The bottom of the tray is provided in corresponding to the through holes with a plurality of pins; when the tray is moved to slide for opening in order to receive an electronic memory card, the pins contact with the input/output pins on the electronic memory card; and when the tray is moved to slide for closing, the pins of the tray are in alignment with the through holes, and are electrically connected with the connecting points on the electric circuit board via the through holes.